Alert archive / Nebraska / Mesoscale Discussions in 2003

Mesoscale Discussion 831

May 7, 20038 counties in Colorado; 5 counties in Kansas; 9 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 7, 2003, 6:01 PM MDT for 8 counties in Colorado; 5 counties in Kansas; 9 counties in Nebraska. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
May 7, 2003, 6:01 PM MDT (00:01 UTC)
Expired
May 7, 2003, 7:30 PM MDT
In force
89 min
Issued by
the Storm Prediction Center
All 22 counties

Cheyenne County, CO, Kiowa County, CO, Kit Carson County, CO, Lincoln County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Greeley County, KS, Sherman County, KS, Wallace County, KS, Wichita County, KS, Arthur County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Keith County, NE, Morrill County, NE, Perkins County, NE

The radar

The Goodland radar (KGLD), 134 km from the middle of the area, began a volume at 00:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.0 hours before the alert went out and 39 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2003-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 104 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2003-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
104 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
2202 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 8, 12:10 PM MDTMesoscale DiscussionSPCKit Carson, Phillips, Washington, Yuma2 hr
May 8, 12:30 PM MDTTornado WatchSPCKit Carson, Lincoln, Logan, Morgan, Phillips, Sedgwick and 2 more6 hr
May 8, 2:35 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick, Yuma115 min
May 8, 12:18 AM MDTMesoscale DiscussionSPCAllen, Barber, Barton, Bourbon, Butler, Chautauqua and 21 more3 hr
May 8, 12:55 AM MDTSevere Thunderstorm WatchSPCAllen, Anderson, Barber, Barton, Bourbon, Butler and 44 more5 hr
May 8, 2:51 AM MDTMesoscale DiscussionSPCAtchison, Barber, Barton, Bourbon, Brown, Butler and 50 more3 hr
May 8, 3:15 AM MDTSevere Thunderstorm WatchSPCAtchison, Brown, Clay, Cloud, Doniphan, Douglas and 19 more7 hr
May 8, 6:50 AM MDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 6 more85 min
May 8, 6:55 AM MDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 6 more95 min
May 8, 11:49 AM MDTMesoscale DiscussionSPCHarper, Sumner3 hr
May 8, 12:07 PM MDTMesoscale DiscussionSPCBarton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 16 more2 hr
May 8, 12:35 PM MDTTornado WatchSPCButler, Chautauqua, Cowley, Elk, Greenwood, Harper and 5 more7 hr
May 8, 12:50 PM MDTTornado WatchSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 31 more7 hr
May 8, 2:26 PM MDTMesoscale DiscussionSPCBrown, Clay, Cloud, Dickinson, Ellsworth, Geary and 22 more2 hr
May 8, 2:34 PM MDTMesoscale DiscussionSPCButler, Chase, Chautauqua, Coffey, Cowley, Elk and 10 more116 min
May 8, 3:16 PM MDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Cherokee, Crawford and 11 more29 min
May 8, 3:40 PM MDTTornado WatchSPCAllen, Anderson, Atchison, Bourbon, Cherokee, Crawford and 13 more6 hr
May 8, 5:38 PM MDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Butler and 46 more2 hr
May 8, 3:18 PM MDTMesoscale DiscussionSPCAntelope, Blaine, Boone, Brown, Burt, Butler and 42 more57 min
May 8, 4:30 PM MDTSevere Thunderstorm WatchSPCBurt, Butler, Cass, Colfax, Cuming, Dodge and 13 more6 hr

Nearby

Mesoscale Discussions in Nebraska, 2003Mesoscale Discussions in Colorado, 2003Mesoscale Discussions in Kansas, 2003Every mesoscale discussion in 2003

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.